using System;
using System.Threading.Tasks;

namespace Sarand.Net.Mobile.Maui.Utils
{
	//=======================================================================
	public static class SamThreadUtil
	{
		//-------------------------------------------------------------------
		// Thread utilities.
		//-------------------------------------------------------------------

		/// <summary>Is the current thread the main thread.</summary>
		public static bool IsMainThread()
		{
			return MainThread.IsMainThread;
		}

		// --- Fire-and-forget dispatch ---

		/// <summary>Invoke an action on the main thread without waiting for completion.</summary>
		public static void PostToMainThread(Action taskFn)
		{
			MainThread.BeginInvokeOnMainThread(() =>
			{
				taskFn();
			});
		}

		// --- Awaitable dispatch ---

		/// <summary>Invoke an action on the main thread and await its completion.</summary>
		public static Task InvokeOnMainThreadAsync(Action taskFn)
		{
			return MainThread.InvokeOnMainThreadAsync(taskFn);
		}

		/// <summary>Invoke an asynchronous function on the main thread and await its completion.</summary>
		public static Task InvokeOnMainThreadAsync(Func<Task> taskFn)
		{
			return MainThread.InvokeOnMainThreadAsync(taskFn);
		}

		/// <summary>Invoke a function on the main thread and await its result.</summary>
		public static Task<T> InvokeOnMainThreadAsync<T>(Func<T> taskFn)
		{
			return MainThread.InvokeOnMainThreadAsync(taskFn);
		}

		/// <summary>Invoke an asynchronous function on the main thread and await its result.</summary>
		public static Task<T> InvokeOnMainThreadAsync<T>(Func<Task<T>> taskFn)
		{
			return MainThread.InvokeOnMainThreadAsync(taskFn);
		}

		// --- The End ---
	}
}